LHA 115-N 55

POSSIBLE SMC
 
Constellation
Tucana
Equatorial coordinates
α = 00 55 17.556
δ = -72 03 10.842
Galactic coordinates
l = 302.5115°
b = -45.0721°

Suspected 2002Ref
Confirmed -
Symbiotic IR type D?Ref
Hot component type -
Outbursts -

Identifiers

LHA 115-N 55 IRAS F00535-7219 GSC2.4.2 S0WB245329 AAVSO -
SIMBAD LHA 115-N 55 Pan-STARRS - SAO - VSX -
GAIA DR3 4689070750646585472 SkyMapper 005517.55-720310.8 WRAY - GCVS -
2MASS J00551754-7203109 HIP - Hen - BD -
WISE J005517.55-720310.8 TYC - ESO - HD -

Symbiotic Catalogs

Bidelman (1954) - Allen (1984) - Belzcyński et al. (2001) -
Gaposchkin (1957) - Kenyon (1986) - Akras et al. (2019) -
Boyarchuk (1969) - Vaidis (1988, 1991) -

Position

Right ascension (°) 13.8231Ref Parallax (mas) -0.056±0.027Ref Reddening E(B-V) (mag) 0.15±0.02Ref, Note
Declination (°) -72.0530Ref Distance (kpc) 62.1±1.9Ref
19.69Ref, Note, 27.26Ref, Note
   
Galactic longitude (°) 302.5115Ref Proper motion in α (mas/yr) 0.78±0.03Ref    
Galactic latitude (°) -45.0721Ref Proper motion in δ (mas/yr) -1.30±0.03Ref    

Observations

X-Ray NoRef IR type D?Ref Radio -
X-Ray type - J (mag) 14.24Ref Flickering -
GALEX FUV (mag) - H (mag) 13.63Ref Outbursts -
GALEX NUV (mag) - K (mag) 12.64Ref Outburst type -
IUE NoRef WISE W1 (mag) 10.35Ref Jets -
FUSE NoRef WISE W2 (mag) 8.82Ref Resolved nebula -
U (mag) 15.85Ref WISE W3 (mag) 6.02Ref IPmax (eV) 99Ref
B (mag) 16.14Ref WISE W4 (mag) 4.56Ref [O III] lines YesRef
V (mag) 15.61Ref IRAS 12μm (Jy) 0.15Ref He II lines YesRef
R (mag) - IRAS 25μm (Jy) 0.12Ref [Fe VII] lines Yes?Ref
I (mag) 14.82Ref IRAS 60μm (Jy) 0.82Ref O VI lines NoRef
BP (mag) 15.49Ref IRAS 100μm (Jy) 5.28Ref
G (mag) 15.18Ref AKARI S09 (Jy) 0.13Ref
RP (mag) 14.58Ref AKARI S18 (Jy) -

Orbit

Orbital period (days) - γ velocity (km/h) - Size of giant’s orbit (AU) -
Eccentricity - RV of giant (km/h) - Separation (AU) -
Inclination (°) - Inferior conj. of giant (JD) - Mass function -
Eclipses -     Mass ratio -
Orbital ephemeris -        

Cool component

Spectral type - Mass (M) - Pulsation YesRef
Eff. temperature (K) - Radius (R) - Type -
IR type D?Ref Luminosity (L) - Pulsation period (days) 147.37Ref
Metallicity [Fe/H] -     Pulsation ephemeris -

Hot component

Type/Spectral type - Mass (M) - Spin period (min) -
Shell-burning/Accreting-only - Radius (R) - Accretion disk -
Eff. temperature (K) - Luminosity (L) -    
Lower limit (K) -        
Upper limit (K) -        

Links

SIMBAD   CDS Portal


Notes

Included in the list of possible symbiotic stars or closely related objects in Munari & Zwitter (2002), this star's spectrum shows many emission lines. It has been classified as a planetary nebula (PN) by Lindsay (1961), a VV Cep star by Walker (1983), and an extreme AGB star in Boyer et al. (2011). The star exhibits variability with a period of 147 days and long-term sinusoidal variability, as reported in Soszyński et al. (2011).


References


Last updated: May 2, 2022